Registration Dossier

Ecotoxicological information

Sediment toxicity

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Description of key information

A sediment toxicity study is not required as DEE does have a low acute aquatic toxicity, does not bioaccumulate, is very volatile and therefore does not remain in sediment over a longer period.

Key value for chemical safety assessment

Additional information

A study on sediment toxicity is not proposed by the registrant as the chemical assessment does not indicate a need to investigate further effects on sediment organisms. This is based on the knowledge that the substance has low aquatic toxicity and has a low bioaccumulation potential. As outlined in the section on environmental fate, the substance due to its low water solubility and high vapour pressure will volatilise rather quickly from the aqueous environment and becomes abiotically degraded in air very quickly (half-life < 1day). hence, significant exposure of sediments is not of concern.